Bondster Posted April 12, 2009 Share Posted April 12, 2009 I just purchased an M3 online and it has the 18" barrel with the rifle sights on the barrel. I want Ghost ring sights and was wondering if the M3 uses the same barrel as the M1 and M2. If so, it seems it would be easier to just change barrels and have the rear sight installed. Quote Link to comment Share on other sites More sharing options...
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